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​Q11: Answers – Paper 5 – June 2018

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Content:

• Finding a Side
• Pythagoras' Theorem – Not Finding the Hypotenuse
• Finding Exact Trigonometry Values – 60°​

Quizzes:

• Finding a Side
• Pythagoras' Theorem – Not Finding the Hypotenuse
• ​Finding Exact Trigonometry Values – 60°

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Mark Scheme

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Working
The diagram shows two right-angled triangles ABD and BCD, sharing a common side BD.
​AD = 10cm, BC = 12cm and angle DBC = 60°.

Work out the length of AB.

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Question

11) The diagram shows two right-angled triangles ABD and BCD, sharing a common side BD.
​AD = 10cm, BC = 12cm and angle DBC = 60°.

Work out the length of AB.

[6 marks]​

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